如何唤醒android并显示活动？

Question

请帮我.我有一个广播接收器:

public class BrcRec extends BroadcastReceiver{
public static WakeLock wakeLock;
@Override
public void onReceive(Context context, Intent intent) {


    PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
    wakeLock = pm.newWakeLock((PowerManager.SCREEN_BRIGHT_WAKE_LOCK | PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP), "TAG");
    wakeLock.acquire();
    //???????????? ??????????
    KeyguardManager keyguardManager = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE); 
    KeyguardLock keyguardLock =  keyguardManager.newKeyguardLock("TAG");
    keyguardLock.disableKeyguard();


    //????? ????? ?????? ?????????.
    Bundle extras = intent.getExtras();
    StringBuilder msgStr = new StringBuilder();

    msgStr.append("??????????? ?????????: ");
    Format formatter = new SimpleDateFormat("hh:mm:ss a");
    msgStr.append(formatter.format(new Date()));
    // Creating activity must be there, i think
    Toast.makeText(context, msgStr, Toast.LENGTH_LONG).show();
    //???????????? ?????.
    wakeLock.release();
}

然后它正在工作,我的机器人不会醒来:按钮闪烁一次,这就是全部.哪里出错？

我想唤醒android并在结果中调用一些活动..谢谢.

Answer 1

在您要显示的活动中,您可以添加以下标志:

getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD |
                WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED |
                WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON |
                WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

这将导致Activity唤醒设备.